(0 18 16 4 2)(1 19 5)(3 9 6)(7 21 20)(8 17 15 12 10)(11 14 13)
ALLOWS (11/8)-SEQUENCE
1: (0 3 9)

(0 6 3 18 16 4 2)(1 19 5)(7 21 20)(8 17 15 12 10)(9)(11 14 13)
2: (1 19 5)

(0 6 3 18 16 4 2)(1)(5)(7 21 20)(8 17 15 12 10)(9)(11 14 13)(19)
3: (3 18 6)

(0 6 16 4 2)(1)(3)(5)(7 21 20)(8 17 15 12 10)(9)(11 14 13)(18)(19)
4: (2 16 4)

(0 6 16)(1)(2)(3)(4)(5)(7 21 20)(8 17 15 12 10)(9)(11 14 13)(18)(19)